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公开(公告)号:US09488171B2
公开(公告)日:2016-11-08
申请号:US14298561
申请日:2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/084 , F04C2/18 , F04C15/0026 , F04C15/0042 , F04C15/0057 , F04C2240/54
Abstract: One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 29.5° and a maximum trailing edge angular location on the stationary journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有驱动齿轮的齿轮泵,穿过驱动齿轮的齿轮轴和固定轴颈轴承。 还包括在静止轴颈轴承的表面和齿轮轴的表面之间的流体膜,以及固定轴颈轴承上的混合垫。 混合焊盘在静止轴颈轴承上具有最小的前缘角位置,为29.5°,在静止轴颈轴承上的最大后缘角位置为42.5°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号:US09453506B2
公开(公告)日:2016-09-27
申请号:US14298434
申请日:2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/084 , F04C2/18 , F04C15/0042 , F04C15/0057 , F04C15/06 , F04C2240/54
Abstract: One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a pressure loaded journal bearing. Also included is a fluid film, between a surface of the pressure loaded journal bearing and a surface of the gear shaft, and a hybrid pad on the pressure loaded journal bearing. The hybrid pad has a minimum leading edge angular location on the pressure loaded journal bearing of 29.5° and a maximum trailing edge angular location on the pressure loaded journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有驱动齿轮的齿轮泵,穿过驱动齿轮的齿轮轴和加压轴颈轴承。 还包括流体膜,在加压轴颈轴承的表面和齿轮轴的表面之间,以及在加压轴颈轴承上的混合垫。 混合垫片在压力负载轴颈轴承上的最小前缘角位置为29.5°,加载轴颈轴承的最大后缘角位置为42.5°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号:US20160123390A1
公开(公告)日:2016-05-05
申请号:US14531373
申请日:2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/0863 , F01C21/108 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/56 , F16C32/0659
Abstract: A gear pump includes a drive gear mounted to a first gear shaft, a driven gear meshable with the drive gear, a plurality of journal bearings, and a first porting path. The first porting path is adapted to provide high pressure fluid communication from a discharge of the gear pump to a first hybrid pad location for a first journal bearing selected from the plurality of journal bearings, the first hybrid pad location circumferentially adjacent to a first fluid film location. Each location is disposed annularly between an inner surface of the first journal bearing, and an outer surface of the first gear shaft or second gear shaft corresponding to the first journal bearing.
Abstract translation: 齿轮泵包括安装到第一齿轮轴的驱动齿轮,可与驱动齿轮啮合的从动齿轮,多个轴颈轴承和第一移动路径。 第一移动路径适于提供从齿轮泵的排放到从多个轴颈轴承选择的第一轴颈轴承的第一混合垫位置的高压流体连通,第一混合垫位置周向地邻近于第一流体膜 位置。 每个位置环形地设置在第一轴颈轴承的内表面和与第一轴颈轴承对应的第一齿轮轴或第二齿轮轴的外表面之间。
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公开(公告)号:US20160032922A1
公开(公告)日:2016-02-04
申请号:US14448552
申请日:2014-07-31
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/14 , F01C21/02 , F04C2/12 , F04C15/0061 , F04C18/14 , F04C29/005 , F04C2240/54
Abstract: One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film location annularly between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad location on the stationary journal bearing adjacent the fluid film location. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 31.0° and a maximum trailing edge angular location on the stationary journal bearing of 43.0°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有驱动齿轮的齿轮泵,穿过驱动齿轮的齿轮轴和固定轴颈轴承。 还包括流体膜位置,环状地位于固定轴颈轴承的表面和齿轮轴的表面之间,并且在固定轴颈轴承上邻近流体膜位置的混合垫片位置。 混合焊盘在静止轴颈轴承上的最小前缘角位置为31.0°,固定轴颈轴承的最大后缘角位置为43.0°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号:US20150354561A1
公开(公告)日:2015-12-10
申请号:US14298561
申请日:2014-06-06
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F04C2/084 , F04C2/18 , F04C15/0026 , F04C15/0042 , F04C15/0057 , F04C2240/54
Abstract: One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 29.5° and a maximum trailing edge angular location on the stationary journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Abstract translation: 一个实施例包括具有驱动齿轮的齿轮泵,穿过驱动齿轮的齿轮轴和固定轴颈轴承。 还包括在静止轴颈轴承的表面和齿轮轴的表面之间的流体膜,以及固定轴颈轴承上的混合垫。 混合焊盘在静止轴颈轴承上具有最小的前缘角位置,为29.5°,在静止轴颈轴承上的最大后缘角位置为42.5°。 齿轮泵还包括用于将高压流体从齿轮泵的排出口供给到混合垫片处的流体膜的输送路径。
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公开(公告)号:US10119551B2
公开(公告)日:2018-11-06
申请号:US14821389
申请日:2015-08-07
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Joseph Wetch , Adrian L. Stoicescu , Michael F. Cass
Abstract: An impeller spinner for a fuel pump can include a head and a shank. The head can have a base at one end and a tip at an opposite end. The shank can have a body portion nearest the head with a first diameter and a fastener portion adjacent to the body portion at an end opposite the head with a second diameter.
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公开(公告)号:US09890813B2
公开(公告)日:2018-02-13
申请号:US14531373
申请日:2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/0863 , F01C21/108 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/56 , F16C32/0659
Abstract: A gear pump includes a drive gear mounted to a first gear shaft, a driven gear meshable with the drive gear, a plurality of journal bearings, and a first porting path. The first porting path is adapted to provide high pressure fluid communication from a discharge of the gear pump to a first hybrid pad location for a first journal bearing selected from the plurality of journal bearings, the first hybrid pad location circumferentially adjacent to a first fluid film location. Each location is disposed annularly between an inner surface of the first journal bearing, and an outer surface of the first gear shaft or second gear shaft corresponding to the first journal bearing.
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公开(公告)号:US09726221B2
公开(公告)日:2017-08-08
申请号:US14531388
申请日:2014-11-03
Applicant: Hamilton Sundstrand Corporation
Inventor: Brandon T. Kovach , Steven A. Heitz
CPC classification number: F16C32/0666 , F01C21/02 , F04C2/086 , F04C2/18 , F04C15/0088 , F04C2240/54 , F04C2240/605 , F16C17/02 , F16C17/26 , F16C32/0659 , F16C32/0685 , F16C2240/30 , F16C2240/40
Abstract: A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. The first hybrid pad location circumferentially adjacent to the first fluid film location has a minimum leading edge angular location of at least about 31.0° measured relative to a first bearing flat. A first porting path provides high pressure fluid communication from a location outside the first journal bearing to the first fluid film location at or adjacent to the first hybrid pad location.
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公开(公告)号:US09562502B2
公开(公告)日:2017-02-07
申请号:US14507406
申请日:2014-10-06
Applicant: Hamilton Sundstrand Corporation
Inventor: Adrian L. Stoicescu , Brandon T. Kovach
CPC classification number: F02M37/18 , F02M37/08 , F04D29/167 , F04D29/2277 , F04D29/245
Abstract: A impeller for a centrifugal pump has an inducer section. The inducer section has first and second pluralities of blades, each having a plurality of polygonal cross-sections defined by a plurality of vertices. The pluralities of vertices are defined by tables of vertex locations. A method of making a centrifugal pump includes forming an impeller that has an inducer section, as described above, and an impeller section. The impeller is fluidly connected downstream of the inducer section and has third, fourth, and fifth pluralities of blades, each having a plurality of polygonal cross-sectional areas defined by a plurality of vertices. The pluralities of vertices are defined by tables of vertex locations.
Abstract translation: 用于离心泵的叶轮具有导流部分。 导流器部分具有第一和第二多个叶片,每个叶片具有由多个顶点限定的多个多边形横截面。 多个顶点由顶点位置表定义。 制造离心泵的方法包括形成如上所述具有导流部的叶轮和叶轮部。 叶轮流体地连接在导流部分的下游,并且具有第三,第四和第五多个叶片,每个叶片具有由多个顶点限定的多个多边形横截面区域。 多个顶点由顶点位置表定义。
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公开(公告)号:US20160097400A1
公开(公告)日:2016-04-07
申请号:US14507406
申请日:2014-10-06
Applicant: Hamilton Sundstrand Corporation
Inventor: Adrian L. Stoicescu , Brandon T. Kovach
CPC classification number: F02M37/18 , F02M37/08 , F04D29/167 , F04D29/2277 , F04D29/245
Abstract: A impeller for a centrifugal pump has an inducer section. The inducer section has first and second pluralities of blades, each having a plurality of polygonal cross-sections defined by a plurality of vertices. The pluralities of vertices are defined by tables of vertex locations. A method of making a centrifugal pump includes forming an impeller that has an inducer section, as described above, and an impeller section. The impeller is fluidly connected downstream of the inducer section and has third, fourth, and fifth pluralities of blades, each having a plurality of polygonal cross-sectional areas defined by a plurality of vertices. The pluralities of vertices are defined by tables of vertex locations.
Abstract translation: 用于离心泵的叶轮具有导流部分。 导流器部分具有第一和第二多个叶片,每个叶片具有由多个顶点限定的多个多边形横截面。 多个顶点由顶点位置表定义。 制造离心泵的方法包括形成如上所述具有导流部的叶轮和叶轮部。 叶轮流体地连接在导流部分的下游,并且具有第三,第四和第五多个叶片,每个叶片具有由多个顶点限定的多个多边形横截面区域。 多个顶点由顶点位置表定义。
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